True or False: The lines 4y-x=9 and 4x + y=-2 are perpendicular and intersect at the point (-1,2).

True

Step-by-step explanation:

the two equations graphed intersect at the point (-1,2) and are perpendicular according to the graph.

a. ∫ xSinx dx

iii. integration by parts

u =x and dv= sinx

b. ∫ x⁴/(1+x³). dx  

ii. neither

Long division is an option here before integration is done

c. ∫ x⁴. e^x³. dx

i. substitution

where u = x⁵

d. ∫x⁴ cos(x⁵). dx

i. substitution

where u = x⁵

e. ∫1/√9x+1 .dx

i. substitution

where u = 9x+1